INFO: task syz-executor.0:28546 blocked for more than 143 seconds.
Not tainted 6.0.0-syzkaller-09589-g55be6084c8e0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:27416 pid:28546 ppid:3638 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5178 [inline]
__schedule+0x8f3/0xd90 kernel/sched/core.c:6490
schedule+0xcb/0x190 kernel/sched/core.c:6566
schedule_timeout+0xac/0x300 kernel/time/timer.c:1911
do_wait_for_common+0x3ea/0x560 kernel/sched/completion.c:85
__wait_for_common kernel/sched/completion.c:106 [inline]
wait_for_common kernel/sched/completion.c:117 [inline]
wait_for_completion+0x46/0x60 kernel/sched/completion.c:138
__flush_work+0x124/0x1a0 kernel/workqueue.c:3073
__cancel_work_timer+0x517/0x6a0 kernel/workqueue.c:3160
p9_conn_destroy net/9p/trans_fd.c:885 [inline]
p9_fd_close+0x24d/0x410 net/9p/trans_fd.c:920
p9_client_create+0xa16/0x1030 net/9p/client.c:1001
v9fs_session_init+0x1e3/0x1990 fs/9p/v9fs.c:408
v9fs_mount+0xd2/0xcb0 fs/9p/vfs_super.c:126
legacy_get_tree+0xea/0x180 fs/fs_context.c:610
vfs_get_tree+0x88/0x270 fs/super.c:1530
do_new_mount+0x289/0xad0 fs/namespace.c:3040
do_mount fs/namespace.c:3383 [inline]
__do_sys_mount fs/namespace.c:3591 [inline]
__se_sys_mount+0x2e3/0x3d0 fs/namespace.c:3568
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f127c28b5a9
RSP: 002b:00007f127d460168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f127c3ac050 RCX: 00007f127c28b5a9
RDX: 00000000200001c0 RSI: 0000000020000180 RDI: 0000000000000000
RBP: 00007f127c2e6580 R08: 0000000020000200 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe4fb07bcf R14: 00007f127d460300 R15: 0000000000022000
INFO: lockdep is turned off.
NMI backtrace for cpu 1
CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.0.0-syzkaller-09589-g55be6084c8e0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
nmi_cpu_backtrace+0x47c/0x4b0 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x169/0x280 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline]
watchdog+0xcd5/0xd20 kernel/hung_task.c:377
kthread+0x266/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 20900 Comm: kworker/u4:7 Not tainted 6.0.0-syzkaller-09589-g55be6084c8e0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:pvclock_clocksource_read+0x69c/0x730 arch/x86/kernel/pvclock.c:85
Code: 8b 34 24 4c 8b 54 24 20 4c 8b 4c 24 18 49 89 d8 48 8b 7c 24 10 e9 bf fa ff ff 40 f6 c5 02 75 6a 4d 01 e6 f6 05 74 8b eb 0c 01 <74> 05 83 e5 01 75 42 48 c7 c7 60 50 9c 8f be 08 00 00 00 e8 fc af
RSP: 0018:ffffc90000007c70 EFLAGS: 00000002
RAX: 0000000000000000 RBX: 1ffffffff1f38803 RCX: 1ffffffff1f38800
RDX: 1ffffffff1f38800 RSI: ffffffff8f9c401c RDI: ffffffff8f9c401d
RBP: 0000000000000001 R08: ffffffff8f9c4000 R09: ffffffff8f9c4008
R10: ffffffff8f9c4018 R11: ffffffff8f9c4010 R12: 000001b84f399094
R13: 0000000000000010 R14: 000001b876574b98 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c013bad4a0 CR3: 000000000ca8e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
kvm_clock_read arch/x86/kernel/kvmclock.c:79 [inline]
kvm_sched_clock_read+0x14/0x40 arch/x86/kernel/kvmclock.c:91
sched_clock_cpu+0x71/0x2b0 kernel/sched/clock.c:369
irqtime_account_irq+0x70/0x210 kernel/sched/cputime.c:60
account_softirq_enter include/linux/vtime.h:141 [inline]
__do_softirq+0x17c/0x75b kernel/softirq.c:549
__irq_exit_rcu+0xec/0x170 kernel/softirq.c:650
irq_exit_rcu+0x5/0x20 kernel/softirq.c:662
sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1107
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:__kasan_check_write+0x0/0x10 mm/kasan/shadow.c:37
Code: 4c 89 fe 31 c0 e8 d2 2b 5b 08 eb d3 cc cc cc cc cc cc cc cc cc cc cc cc cc cc 89 f6 48 8b 0c 24 31 d2 e9 03 ef ff ff 0f 1f 00 <89> f6 48 8b 0c 24 ba 01 00 00 00 e9 f0 ee ff ff 55 41 56 53 48 89
RSP: 0018:ffffc9000367f6b8 EFLAGS: 00000256
RAX: 00000000ffffff01 RBX: dffffc0000000000 RCX: ffffffff8169998b
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffc9000367f720
RBP: ffffc9000367f790 R08: dffffc0000000000 R09: ffffed1002437c25
R10: ffffed1002437c25 R11: 1ffff11002437c24 R12: ffff8880121be120
R13: 1ffff920006cfee4 R14: ffffc9000367f720 R15: 1ffff11002437c25
instrument_atomic_read_write include/linux/instrumented.h:101 [inline]
atomic_try_cmpxchg_acquire include/linux/atomic/atomic-instrumented.h:542 [inline]
queued_spin_lock include/asm-generic/qspinlock.h:111 [inline]
do_raw_spin_lock+0x148/0x360 kernel/locking/spinlock_debug.c:115
spin_lock include/linux/spinlock.h:350 [inline]
__get_locked_pte+0x169/0x1c0 mm/memory.c:1838
get_locked_pte include/linux/mm.h:2089 [inline]
__text_poke+0x272/0x9d0 arch/x86/kernel/alternative.c:1132
text_poke arch/x86/kernel/alternative.c:1217 [inline]
text_poke_bp_batch+0x64c/0x850 arch/x86/kernel/alternative.c:1566
text_poke_flush arch/x86/kernel/alternative.c:1670 [inline]
text_poke_finish+0x16/0x30 arch/x86/kernel/alternative.c:1677
arch_jump_label_transform_apply+0x13/0x20 arch/x86/kernel/jump_label.c:146
static_key_enable_cpuslocked+0x129/0x250 kernel/jump_label.c:177
static_key_enable+0x16/0x20 kernel/jump_label.c:190
toggle_allocation_gate+0xbf/0x470 mm/kfence/core.c:811
process_one_work+0x81c/0xd10 kernel/workqueue.c:2289
worker_thread+0xb14/0x1330 kernel/workqueue.c:2436
kthread+0x266/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306